Home / 1,142,879.60-1,577,111.64-633,655.28

Finding the Fourth Proportional to 1,142,879.60, 1,577,111.64 and 633,655.28

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Solution

The fourth proportional to 1,142,879.60, 1,577,111.64 and 633,655.28 is: 874,409.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,142,879.60 : 1,577,111.64 = 633,655.28 : x
  2. Step 2: Convert to fraction form
    1,142,879.60/1,577,111.64 = 633,655.28/x
  3. Step 3: Cross multiply
    1,142,879.60x = 1,577,111.64 × 633,655.28
  4. Step 4: Simplify right side
    1,142,879.60x = 999,345,117,835.46
  5. Step 5: Solve for x
    x = 999,345,117,835.46/1,142,879.60
  6. Step 6: Final answer
    x = 874,409.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.